Paper-bag machine



(No Model.) 17 Sheets-Sheet 1.

W. WERTS.

PAPER BAG MACHINE. No. 583,523. Patented June 1,1897.

W. W'ERTS.

ER BAG MACHINE No. 583,523. PatentedJune 1,1897.

(No Model.) 17 Sheets-Sheet s.

W. WERTS.

PAPER BAG MACHINE, No. 583,523. Patented June 1,1897.

(No Model.) 17 SheetsSheet 4. W. WERTS. PAPER BAG MACHINE.

No. 583,523. Patented June1,1897.

(No Model.) 17 SheetsSheet 6.

W. WERTS. PAPER BAG MACHINE.

Patented June 1,1897.

.ru: nonms PETERS co PNOTO-LITNO.. WASHINGYON, n. c

(No Modei.)

' 17 Sheets-Sheet 7. W. WERTS.

PAPER BAG MACHINE.

No. 583,523. Patented June 1, 1897.

Mfm'esses: idfly 59. AOMZMMW.

Tn: mums PETERS ca. PH UTO-LITMOJWASHINGTON 0 c (No Model.) 17Sheets8heet 8. W WERTS PAPER BAG MACHINE.

Patented June 1,1897.

.%N @NB minesses- QaJOA/ZwMJL/U.

(No Model.) I 17 Sheets-Sheet 9.

W. WERTS.

PAPER BAG MACHINE.

No. 583,523. Patented June 1,1897.

:2 g m w 4' Q 3 -73 a; B o v: a Q

W't Invent 2/ M3565 01' @MMM WW WW m: NORRIS Pzrsns co, FHOTO-LITHQ,WASHINGTON. o c.

(No Model.) 17 Sheets-Sheet 10.

- W. WERTS.

PAPER BAG MACHINE.

No. 583,523. Patented June 1,1897.

6% QNPN m: Noam: PEYERS ca Pwmmuruq, wnsumuron, a; c

(No Model.) 17 Sheets-Sheet 11.

W. .WERTS.

PAPER BAG MACHINE. No. 583,523. Patented. June 1,1897.

min

Witnesses w: uonme vzTgis co; vncnxuma. wnnmaran, D. c.

' (No Model.) 1'? Sheets-Sheet 12.

W. WERTS. l

PAPER BAG MACHINE.

No. 583,523. Patented June 1,1897.

1 "aims mzng p0. mumuwa. wAsMmoToN. n. C.

( l 17 Sheets-Sheet 13.

' W. WERTS.

PAPER BAG MACHINE.

N0. 583,528. Patented June 1,1897.

QM @Nk Witnesses TnE mums Pnzig 00., Puo'ro-uma. wuumawm :1. c4

I (No Model.) 17 Sheets-Sheet 14.

W. WERTS.

PAPER BAG MACHINE.

No. 583,523. Patented June 1,1897.

lllventor minesses U 6%64 MM 2 (No Model.) 17 Sheets-Sheet 15.

W. WERTS,

PAPER BAG MACHINE. No. 583,523. Patented June 1, 1897.

M'EngSSGS Jnveni'm' Mlliam n eris Z his flii ov'ng //Za/l I (No Model.)17 Sheets Sheet 16. W. WERTS.

PAPER BAG MACHINE.

No. 583,523. Patented June 1,1897.

mum @NN (No Model.)

17 ShetsSheet 17. W WEB-TS.

PAPER BAG MACHINE.

No. 583, 5Z3.

Patented June 1, 1897.

GEE V- LEEEEE FLEE-ILEFLFLEPLFLEFL E ifiiiwsses frw'anfizr mmflria 1 MM4 @M FLEEEEVILEEEEEEEEFLEEEE THE new! virus 00. wow-Lima, wnsmumovcn. a.

.11, and 12.

UNTTED STATES PATENT mon.

\VlLLlAM IVERTS, OF CAMDEN, NEXV JERSEY.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 583,523, dated June 1,1897. Application filed July 8, 1891. Renewed October 15, 1896. SerialNo. 609,031. (No model.)

Be it known that I, WILLIAM \VERTS, a citizen of the United States, anda resident of Camden, Camden county, New Jersey, have invented certainImprovements in Paper-Bag Machines, of which the following is aspecification.

The object of my invention is to construct a machine for making withextreme rapidity from suitable tubular blanks square paper bags that isto say, bags having tucked or bellows-folded sides, and by preferencealso what are known as satchel-bottoms.-

The main feature of the invention consists in mounting upon an endlessbelt or carrier a number of bag-forming mechanisms which operate inconjunction with certain cams and supplementary forming mechanisms, sothat a number of different operations, in fact, all of the successivesteps in the making of the bag, may be carried on simultaneously,-onestep in the operation upon one bag, another step in the operation uponanother bag, and so on, so that in one machine a large number of bagsmaybe under construction at one time.

The invention also comprises the detailed construction of the variousparts of the machine, as fully set forth and claimed hereinafter.

In the accompanying drawings, Figures. 1 to 9, inclusive, areperspective diagrams illustrating the successive steps in the formationof the bag upon my improved machine, only so much of the mechanism ofthe machine bein g shown as is necessary to a proper understanding ofthe operation of making the bag. Fig. 1 0 is a plan view of one of themain bagforming mechanisms of the machine. Fig. 11 is a longitudinalsection of the same on the line so 00, Fig. 10. Fig. 12 is a front viewlooking in the direction of the arrow, Fig. 10. Fig. 13 is a sideelevation of the various operating-cams and the rods connected to thebag-forming mechanisms shown in Figs. 10, Figs. 14 to 25 are plan viewsof the various operating-cams and in connection with each of the samethose parts of the bag-forming mechanism upon which it acts. Figs. 26and 27 are respectively a side elevation partly in section and a planView of the pasting mechanism of the machine. Figs. 28

ing the endless belt or carrier with one set of bag-formin g devicesmounted thereon and showing the relation of the same to certainoperating-cams and to a second endless belt which carries devices forpasting the bottom of the bag; and Fig. 36 is a plan view showing saidendless belt or carrier with its setof bag-forming devices, illustratingthe relation of the latter to certain other operating-cams, to a certaindrying-chest, and to a third endless belt which carries devices forremoving the finished bag from the bag-former.

The machine which I have shown and will describe is one for making asquare satchelbottomed' bagthat is to say, one having tucked orbellows-folded sides and a bottom with opposite inwardly-projectin gtriangular flaps or pockets, so that when the bag is opened it willnaturally. assume a square or box-like formbut my machine can by theomission of a number of parts be adapted for the manufacture of ordinarysquare bags that is to say, bags having tucked sides but having at thebottom a single transverse flap folded over and pasted on against oneside of the bag.

In order to facilitate an understanding of the construction andoperation of the mechanism of the machine, it will be best, in the firstinstance, to describe the successive steps in the making of the bag withreference only to those parts-of the machine which act upon the bagduring its manufacture, and for this purpose reference may be had toFigs. 1 to 9 of the drawings.

The bag-blanks, in the form of tubes of the proper length, are made in aseparate machine and are fed into the bag-forming machine by mechanismwhich will form the subj ect of a separate application for patent, andneed not therefore be here further alluded to.

The bag-blank as is delivered by the feeding mechanism onto a pair ofplates 1 1, located one above the other and of a width equal to thewidth of the desired bag, the blank being fed over these plates whilethe same are only separated from each other a short distance, and beingallowed to project beyond the outer end of the plates to an extentsufficient for the formation of the necessary folds for the bottom ofthe bag. As soon as the blank has been applied to the plates 1 1 thelatter are separated, so as to distend the tubular blank, as shown inFig. 1, and a block 2 is thrust forward between the plates until it isflush with the outer ends of the same, as also shown in said figure.

Above the top plate 1 is another plate 3 with beveled or Vshaped frontend, and beneath the lower plate 1 is a similar plate 3, these platesduring the preceding operations having been retracted so that theirbeveled or Vshaped front ends are in the rear of the front edges of theplate 1. The plates 3 are now projected, however, so that their beveledfront ends extend beyond the plates 1, as shown in Fig. 2, and form abearing for the projecting end of the tube during the action of thelateral folding-fingers 4 t. There are two pairs of these fingers, onepair for each side of the bag, each pair comprising a finger close tothe upper plate 1 and a like finger close to the lower plate 1, and thefingers have a swinging movement imparted to them, so that the two pairsact in succession and form first the fold it at one side of thebagblank, as shown in Fig. 3, and then a like fold :0 at the other sideof the bagblank, as shown in Fig. 4, the effect of these side folds,owing to the projecting Vshaped ends of the plates 3, being to form atthe top and bottom of the blank Vshaped flaps 00 as shown in Fig. 4.Paste is now applied by means of an Lshaped block or pasting-head 5,Fig. 5, to the outer faces of the folds 00 at the points 1 and to theupper face of the lower flap at the pointy, the pastinghead being thenwithdrawn sim ultaneously with or immediatelybefore the withdrawal ofthe plates 3. The upper projecting flap x is then folded downward bymeans of a folding-plate 6, as shown in Fig. 6, so as to overlap thepasted portion y of the side folds x, and the upper foldingplate 6 isthen withdrawn and the lower flap m is turned upward against the bottomof the bag by a lower folding-plate 6, as shown in Fig. 7, so that thepasted portion y of said flap is brought into contact with the end ofthe upper flap and with the portions of the side folds an, adjacentthereto. The pasted folds are then subjected for a time to heat andpressure by means of devices to be hereinafter described, so as toinsure the firm uniting of the pasted parts. During all these operationsthe block2 occupied a position at the front ends of the plates 1 andprovided a bearing against which the successive folds of the bottom werelaid, but this block is now withdrawn and the plates 1 1, carrying withthem the plates 3, are caused to approach each other, and at the sametime lateral folding or tucking plates 7 are caused to move inwardbetween the plates 1 at each side of the bag, so as to form the oppositetucked or bellows folds therein, as shown in Fig. 8. The side folding ortucking plates 7 are then withdrawn and the bottom of the bag is actedupon by the upper folding-plate 6, so as to fold it over into line withthe body of the bag, as shown in Fig. 9, it being understood that thefolding-plate 6 is so pivoted that it can assume either a vertical or ahorizontal position, or any position intermediate of the two.

The mechanism above described for forming the various folds in the bagis mounted upon a substantial framework carried by a rod 8, which issupported upon and is carried by an endless belt or conveyer, preferablyin the form of a chain belt, having any desired number of chains. Thus,as shown in Figs. 10 and 11, the rod Sis secured to a conveyer havingtwo chains 9 9, certain of the links of these chains being constructedfor the reception of the rod 8, which is firmly secured thereto.

As stated in the specification, it is proposed to have a series offolding mechanisms upon the chain belt or conveyer, which foldingmechanisms are brought successively under the control of theoperating-cams, referrcd'to hereinafter, as said folding mechanisms arecarried along by the belt, the cams beingstationary, and the endlessbelt or conveyer may be passed around opposite drums or pulleys, so asto have simply an upper and lower run, or it may be guided in serpentineform, where the size of the room or apartment in which the machine issituated is not such as to warrant the use of the simple straight belt.

The plates 1 are carried by cross-bars 10, which, as shown in Fig. 34,are carried by the front ends of the rods 12, suitably guided inhearings in the frame of the machine, so that they are capable oflongitudinal movement and also of movement from and toward each other.The upper rod 12 is carried by the upper arms and the lower rod 12 bythe lower arms of a pair of levers 13, which are hung to a cross'bar 1aon the rod 8, the upper rear arm of one lever and the lower rear arm ofthe other lever being connected by links 15 to a slide 16, on the rod 8,and said slide being connected by a rod 17 to a lever 18, hung to ablock 19 on the rod 3, an antifriction-roller on this lever being undercontrol of a grooved cam a, Fig. 14, whereby at the proper time forwardand backward movements on the rod 8 are imparted to the slide 16, andthe levers 13 are thereby expanded and contracted, so as to raise andlower the rods 12 and thus separate or bring together the plates 1.

The block 2 is carried bya pair of rods 20, which are suitably guided inthe frame, and said block 2 is projected by the action of a cam bupon anantifriction-roller 21, carried by a cross-head at the rear of the rods20, as shown in Fig. 15, the retracting movement of the block beingeffected by the action of a cam 1) upon said roller 21, as shown in Fig.23.

The upper and lower plates 3 are carried bybars 30, as shown in Fig. 11,and the movement of said bars is -derived from cams cl, Fig. 16, thesecams acting upon upper and lower rods 31, Figs. 10 and 11, the camsimparting forward movement to the rods, the backward movement of whichis due to the action of springs 32. The upper rod. 31 is connected by alink 33 to an arm 34 on a-rockshaft 35, which has another arm 36,connected by a link to a bracket 37 on the frame 30, carrying the upperplate 3, while a stud on the frame 30, carrying the lower plate 3, isconnected to one arm of a lever 39, the other arm of which is. connectedto a lever. 38, which is connected by links to the front end of thelower rod 31.. This construction is shown by dotted lines in Fig. 10,and is also illustrated in Fig. 34.

The folding-fingers 4 at one side of the bag are operated by mechanismprecisely similar to that which operates the folding-fingers at theother side of the bag. Hence it will not be necessary to describe morethan one set of these devices.

The fingers 4 are carried by a rock-shaft 40, adapted to bearings in aframe 50, described hereinafter, rocking movement being imparted to theshaft 40 at one side of the machine from a camf, Fig. 18, and to therock-shaft at the opposite side of the machine from a cam f, Fig. 20,these cams each acting through the medium of a rod 41, which isprojected by the cam and retracted by a spring 42, the front end of eachrod being connected by a rod 43 to an arm 44 on the rock-shaft, whichalso has another arm 45, adapted to engage with a spring-catch 46 at thetop of the machine, so at to retain the fingers in their inward positionafter the rod 41 has passed beyond the control of its cam. Before anyswinging movement of the fingers 4, however, there is an inward movementof the frame 50, carrying the same, such movement being efiected as tothe frame at one side of the machine by a cam g, Fig. 17, and as to theframe at the other side of the machine by a cam g, Fig. 19. Each ofthese cams acts through the medium of a rod 51, which is projected bythe cam and retracted by a spring 52, the forward end of each rod beingconnected by a link 53 to one arm of a bell-crank lever 54, the otherarm of which is connected by a link 55 to one arm of a lever 56, theother arm of the latter being connected by a link 57 to the frame 50.Vhen, therefore, the frame is moved inward and the shaft 40 is rocked soas to fold inward the fingers 4 and cause the arm to engage with thespring-catch 46 said arm will be held by the catch until the frame ismoved outward by the action of the springs 52 upon the rod 51 when therod passes from under control of its cam.

, The mechanism for actuating the upper folding-plate 6 is under controlof a cam h, Fig. 21, and the mechanism for operating the lowerfolding-plate 6 is under control of a cam h, Fig. 22, each of these camsacting upon a rod 61 to project the same, and each rod being acteduponby a spring 62 to retract it. The forward end of each rod isconnected by a link 63 to one arm of a lever 64, which is hung to an arm65 on a rod 66,

the other arm of said lever being connected to a bracket at the rear endof the plate 6. Each plate 6 is hung, however, at a point in advance ofthe bracket 67 to the front end of a bar 68, which is carried by a block69 on the rod 66. Owing to this construction the movement of each plate6 isa compound onethat is to say, it comprises a movement toward andfrom the plates 1 and a swinging movement on its pivot. When the plates1 are separated, the plates 6 in their movement toward said plates 1strike the front edges of the same at a point in the rear of the pivot.Hence the continued forward movement of the rod 61 is devoted to turningthe plates on their axes, so as to fold in the flaps m of thebag-bottom, as before described, but when the plates 1 are closetogether the upper plate 6 in swinging toward said plates 1 strikes thesame at a point in advance of the pivot, and hence is caused to moveinward and rearward, so as to fold over the bottom as the bag in linewith the body of the same, as before set forth. The final movementof theupper folding-plate 6, in order to form this last fold in the bottom, iseffected by the action of a cam 7Z2, Fig. 25. Before this action,however, it was necessary to close together the plates 1 and form theside tucks, and this operation was eifected by means of a cam a, Fig.24,. acting upon the lever 18, and thence upon the mechanism carryingthe said plates 1.

The side tucking or folding plates 7 are moved inward simultaneouslywith the closing of the plates 1, and move outward simultaneously withthe opening of said plates, so that they can be operated by connectionwith the same mechanism which effects the movement of the plates. Theslide 16 is therefore connected at each side by an arm 71 to a swingingarm 72, hungtoacross-bar '73 on the rod 8, this swinging arm 72 beingconnected by a rod 74 to one arm ofa lever 75, hung to the fixed frame,and this lever being connected bya link 76 toayoke 77, which carries atits inner end the folding or tucking plates 7, as shown in Fig. 24.

The mechanism for applying the paste, as shown in Fig. 5, is illustratedin Figs. 26 and 27, this mechanism being carried by an end-- less beltor conveyer running adjacent to the

